Closet vent



June 29 1926. 1,590,345

T. CLARKE CLOSET VENT Fild July 17, 1924 Patented June 29, 1926.

UNITED STATES PATENT OFFICE.

THOMAS MATTHEW CLARKE, 0F MONTREAL, QUEBEC, CANADA, ASSIGNOR OF ONE- HALF TO GEORGE WALKER, OF MONTREAL, CANADA.

CLOSET VENT.

Application filed July 17, 1924. Serial No. 726,514.

The invention relates to a closet vent, as described in the present specification and illustrated in the accompanying drawings that form part of the same.

The invention consists essentially of the novel features of construction pointed out broadly and specifically in the claims for novelty following a description containing an explanation in detail of an acceptable form of the invention.

The objects of the invention are to improve the sanitary conditions in toilets and lavatories by carrying away all offensive odors and thereby leaving the atmosphere of the chamber sweet and wholesome; to produce a simple, cheap and efiective device for the aforesaid purposes, to facilitate the exudation of the noxious smells; to manufacture an article of the nature described herein that will not increase the cost to the consumer to any material extent in such installations; and generally to provide for public and private use an efficient and useful addition tocloset installations.

In the drawings, Figure 1 is a perspective View, showing the stool in an ordinary equipment and the invention applied. thereto.

Figure 2 is a vertical sectional view of the device.

Figure 3 is an enlarged plan view of the seat and attachment.

Figure 4 is a front view showing the ap' plication. of this invention in a multiple installation.

Figure 5 is a side sectional view of the device showing the seat in its open position.

Figure 6 is a perspective view of the plate and plate lugs.

Like numerals of reference indicate corresponding parts in the various figures.

Referring to the drawings, the seat 10 is made in conventional form and of suitable material and at the rear end it is slotted transversely to form an arc-shaped deflecting surface 11 for the better direction of the foul air. The plate 12 is rigidly secured to the seat 10 by the screws 13 and at the rear edge of the seat this plate is formed to describe in cross section approximately a semi-circle and at its extremity is curled to form a recess 14. At each side of the curved portion of the plate 12 the lugs 15 and 16 turned down from the plate form the hinge members of the seat 10.

The tail board 17 of the seat 10 is secured to the bowl 18 and is formed with the bevelled front surface 19 corresponding in Width with the deflecting surface 11, the foul air passage 20 being thus formed by these surfaces 11 and 19. The hinge lugs 21 and 22 extend upwardly from the plates 23 and 24 and their pivot holes register with the pivot holes in the hinge lugs 15 and 16,

through which the pivot rod 25 secures the.

seat and seat tail board together.

The vent pipe 26 is formed at its mouth with the downwardly curled upper wall 27, which fits into the recess 14, the lower wall 28 being shortened to increase the freedom of the inlet. with the tail board 17 and extends therefrom, preferably in the reduced end 29 being preferably to one side to permit of meter or other attachments at the back of the stool.

In using a number of these vents, such as are in place at public lavatories, the pipe ends 29 communicate with a comparatively large horizontal main vent pipe 31, which has a suitable outlet pipe 32 from a suction chamber 33 in which a suction fan is operated.

In the operation of this device the foul air created is drawn either by natural draft or artificial suction through the passage 20 to the vent pipe 26 and from this pipe it flows to the outlet. It will be noticed that the curled end of the plate carrying the seat hinges in its open position engages the vent pipe 26 while in the closed position it engages the bevelled surface of the tail board while the curved plate still engages the. downwardly turned end of the vent pipe 26 thus closing up the latter entirely when the seat is thrown back, which maintains the sweetness of the atmosphere by positively avoiding any back flow from the vent pipes,

In single and multiple installations this invention is equally eflicient and its service ability in public places can hardly be overestimated.

W'hat I claim is 1. In a closet vent, an outlet vent pipe extending from a wide mouth forming the inlet, the latter having projecting pieces forming hinge pin bearings, a plate adapted to be secured to the seat and having an inner flanged end curved to form a closure for said Wide mouth and end pieces to said This vent pipe 26 is rigid curved portion forming hinge pin bearings, and a hinge pin inserted in said bearings to join said plate pipe extension.

2. In a closet vent, a bowl, a seat tail piece fixedly secured at the rear of said bowl and having a slotted front side, hinge plate secured to the rear portion of said seat and having an arced extension above a vent opening formed by said slots and hinge lugs cooperating with the aforesaid lugs in securing said tail piece and seat together, and an outlet pipe having an inlet formed to register with said vent opening.

3. In a closet vent, a bowl, a seat tail piece fixedly secured at the rear of said bowl and having slotted front side, hinge plates having hinge lugs projecting upwardly at each end of said slot, a seat having a stool opening and slotted rear side, a hinge plate secured to the rear portion formed by said slots and hinge lugs cooperating with the aforesaid lugs in securing said tail piece and seat together and an outlet pipe having an inlet formed to register with said vent opening.

4. In a closet, a bowl, seat tail piece fixedly secured at the rear of said bowl and having a slotted front side hinge plate having hinge lugs at each end of said slot a seat having a stool opening and an arcshape slot cut in the under side at the rear thereof, a hinge plate secured to the rear portion of said seat and having an arced extension above a vent opening formed by said slots and a hinge lug cooperating with the aforesaid lugs in securing said tail piece and seat together, and an outlet pipe having an inlet formed to register with said vent opening.

5. In a closet, a bowl, a seat tail piece fixedly secured at the rear of said bowl and having a slotted front side, hinge plates having hinge lugs at each end of said slot, a seat having a stool opening and a slotted rear side, a hinge plate secured to the rear portion of said seat and having an upward extension from the central portion thereof formed in substantially semi-circular shape in cross section and upwardly curled at the end thereof to receive the mouth of the outlet pipe and covering the vent opening formed by said slots and hinge lugs extending downwardly from said curled portion and cooperating with the aforesaid lugs in securing said tail piece and seat together, and an outlet pipe having an inlet formed to register with said vent opening.

6. In a closet, a bowl, a seat tail piece fixedly secured at the rear of said bowl and having a slotted front side, hinge plates having hinge lugs at each end of said slot, a seat having a stool opening and a slotted rear side, a hinge plate secured to the rear portion of aid seat and having an arced extension above a vent opening formed by said slots and hinge lugs cooperating with the aforesaid lugs in securing said tail piece and seat together, and an outlet pipe having a widened inouth forming an inlet and connected to said arced extension and increasing in size diametrically towards its upper end.

7. In a closet, a bowl, a seat tail piece fixedly secured at the rear of said bowl and having a slotted front side, hinge plates having hinge lugs at each end of said slot, a seat having a stool opening and a slotted rear side, a hinge plate secured to the rear portion of said seat and having an arced extension above a vent opening formed by said slots and hinge lugs cooperating with the aforesaid lugs in securing said tail piece and seat together, and an outlet pipe having a substantially fiat and wide mouth portion at the lower end secured to the said tail piece and projecting into the said arced extension;

8. In a closet, a bowl a seat tail piece fixedly secured at the rear of said bowl and having a slotted front side hinge plate having hinged lugs at each end of said slot, aseat having a stool opening and a slotted rear side, a hinge plate secured to the rear portion of said seat and having an arced extension above a vent opening formed by said slots and hinge lugs cooperating with the aforesaid lugs in securing said tail piece and seat together, and an outlet chamber secured to the tail piece of the seat and projecting into a suitable formation of said arced extension and having a pipe projecting upwardly from an opening onset to one side thereof.

Signed at Montreal, Canada, this 4th day of July, 1924.

THOMAS MATTHE'W CLARKE. 

